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<title>4.输入框组</title>

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    <div class="container">
    
    	<br><br><br>
    	
        <div class="input-group">
        	<span class="input-group-addon">@</span>
        	<input type="text" class="form-control">
        </div>
        
        <br>
        
        <div class="input-group">        	
        	<input type="text" class="form-control">
            <span class="input-group-addon">.00</span>
        </div>
        
        <br>
        
        <div class="input-group">
        	<span class="input-group-addon">￥</span>       	
        	<input type="text" class="form-control">
            <span class="input-group-addon">.00</span>
        </div>
        
        <br>
        
        <div class="input-group input-group-lg">
        	<span class="input-group-addon">￥</span>       	
        	<input type="text" class="form-control">
            <span class="input-group-addon">.00</span>
        </div>
        
        <br>
        
        <div class="row">        	
            <div class="col-sm-6">
            	<div class="input-group">
                	<span class="input-group-addon">
                    	<input type="checkbox">
                    </span>
                	<input type="text" class="form-control">
                </div>            
            </div>
            
            <div class="col-sm-6">
            	<div class="input-group">
                	<span class="input-group-addon">
                    	<input type="radio">
                    </span>
                	<input type="text" class="form-control">
                </div>            
            </div>        
        </div>
        
        <br>
        
        <div class="row">        	
            <div class="col-sm-6">
            	<div class="input-group">
                	<span class="input-group-btn">
                    	<button type="button" class="btn btn-primary">百度搜素</button>
                    </span>
                	<input type="text" class="form-control">
                </div>            
            </div>
            
            <div class="col-sm-6">
            	<div class="input-group">                	
                	<input type="text" class="form-control">
                    <span class="input-group-btn">
                    	<button type="button" class="btn btn-primary">百度搜素</button>
                    </span>
                </div>            
            </div>        
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         <div class="row">        	
            <div class="col-sm-6">
                <div class="input-group">
                    <span class="input-group-btn">
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                            百度搜素
                            <span class="caret"></span>
                        </button>
                        <ul class="dropdown-menu">
                        	<li><a href="#">新闻</a></li>
                            <li><a href="#">网页</a></li>
                            <li><a href="#">贴吧</a></li>
                        </ul>
                    </span>
                    <input type="text" class="form-control">
                </div>            
            </div>
            
            <div class="col-sm-6">
                <div class="input-group">                	
                    <input type="text" class="form-control">
                    <span class="input-group-btn">
                        <button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown">
                            百度搜素
                            <span class="caret"></span>
                        </button>
                        <ul class="dropdown-menu">
                        	<li><a href="#">新闻</a></li>
                            <li><a href="#">网页</a></li>
                            <li><a href="#">贴吧</a></li>
                        </ul>
                    </span>
                </div>            
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